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TT-1112 EXTRUSION LAMINATOR, UP TO 2200mm, ONE SIDED LAMINATING MACHINE (480 VOLTS, 3-PHASE, 60Hz) MAIN PROCESS AND PARAMETERS TECHNOLOGICAL PROCESS MAIN UNWINDING, RECTIFYING, EXTRUDING, COMPOUND CUTTING AND REWINDING. MAIN TECHNICAL PARAMETERS 1. RAW MATERIAL: SUITABLE FOR COATING RESIN LDPE, PP AND OTHER COATING BASE MATERIAL. 2. AUXILIARY BASE MATERIAL: PAPER, NON-WOVEN FABRIC, ALUMINUM FILM, WOVEN CLOTH AND OTHER APPLICABLE MATERIALS MECHANICAL SPEED: 60 TO 150 METERS/MINUTE (ACTUAL SPEED DEPENDS ON FILM MATERIAL, FILM WIDTH AND THICKNESS, ETC.) EFFECTIVE WIDTH OF LAMINATING: 1200 TO 2000mm LAMINATING THICKNESS: 0.008 TO 0.080mm LAMINATING THICKNESS ERROR ±5% TENSION SETTING RANGE: 20 TO 200 KG/FULL WIDTH CONSTANT TENSION MAXIMUM EXTRUSION: 200 KG/HOUR INNER DIAMETER OF BASE MATERIAL ROLL CORE: 76mm MACHINE POWER: 100 KW ACTUAL OPERATING POWER IS 50 KW TO 60 KW CONTROL TYPE OF COMPOUND SPEED AND LAMINATING THICKNESS: PLC COMPUTER, FULLY AUTOMATIC ELECTRICAL CONTROL LAMINATING WITH EMBOSSING: SINGLE-LAYER Learn More

YY-1845 PET SINGLE BEAM SPUNBONDED NONWOVENS PRODUCTION LINE GENERAL DESCRIPTION: WIDTH OF PRODUCT: 3.2M; WEIGHT RANGE: 15 TO 170G/M2; PRODUCTION CAPACITY: 556KG/H (BASED ON PRODUCT WITH BASIS WEIGHT OF 50G/M2 OR ABOVE, AND WITH WIDTH OF 3.2M AND FABRIC DELIVERING SPEED OF 58M/MIN). THE DESIGNED ANNUAL CAPACITY IS 4000 TONS PET SPUNBONDED NONWOVEN FABRICS (OUTPUT CALCULATION IS BASED ON THE PRODUCT WITH BASIS WEIGHT OF 50G/M2 AND WITH WIDTH OF 3.2M AND 8000 WORKING HOURS ANNUALLY AND AT FABRIC CONVEYING SPEED OF 58M/MIN, AND THE EFFICIENCY OF 95%). PROCESS SPEED: 10M/MIN TO 150M/MIN; FIBER FINENESS: 1.0 TO 3.0 DPF; MACHINERY DIMENSIONS (L×W×H): 25M×18M×10.5M (FOR REFERENCE ONLY AND DEPENDS ON THE ACTUAL DESIGN). TOTAL INSTALLED POWER: 1492KW (ACTUAL POWER CONSUMPTION: APPROXIMATELY 746KW). Learn More

Federal health officials have now recommended that we cover our faces with fabric during the coronavirus pandemic. But what material offers the most protection?

The Centers for Disease Control and Prevention has posted a no-sew mask pattern using a bandanna and a coffee filter as well as a video on making masks using rubber bands and folded fabrics found at home.

While a simple face covering can reduce the spread of coronavirus by blocking outgoing germs from coughs or sneezes of an infected person, experts say there is more variation in how much homemade masks might protect the wearer from incoming germs, depending on the fit and quality of the material used.

Scientists around the country have taken it upon themselves to identify everyday materials that do a better job of filtering microscopic particles. In recent tests, HEPA furnace filters scored well, as did vacuum cleaner bags, layers of 600-count pillowcases and fabric similar to flannel pajamas. Stacked coffee filters had medium scores. Scarves and bandanna material had the lowest scores, but still captured a small percentage of particles.

If you don’t have any of the materials that were tested, a simple light test can help you decide whether a fabric is a good candidate for a mask.

“Hold it up to a bright light,” said Dr. Scott Segal, chairman of anesthesiology at Wake Forest Baptist Health who recently studied homemade masks. “If light passes really easily through the fibers and you can almost see the fibers, it’s not a good fabric. If it’s a denser weave of thicker material and light doesn’t pass through it as much, that’s the material you want to use.”

Researchers say it’s important to remember that lab studies are conducted under perfect conditions with no leaks or gaps in the mask, but the test methods give us a way to compare materials. And while the degree of filtration for some homemade masks seems low, most of us — who are staying home and practicing social distancing in public — don’t need the high level of protection required for medical workers. More important, any face covering is better than none, especially if worn by a person who has the virus but doesn’t know it.

The biggest challenge of choosing a homemade mask material is to find a fabric that is dense enough to capture viral particles, but breathable enough that we can actually wear it. Some items being touted online promise high filtration scores, but the material would be unwearable.

Dressing Up for Work … at Home
Yang Wang, an assistant professor of environmental engineering at Missouri University of Science and Technology, worked with his graduate students to study various combinations of layered materials — including both air filters and fabric. “You need something that is efficient for removing particles, but you also need to breathe,” said Dr. Wang, who last fall won an international award for aerosol research.

To test everyday materials, scientists are using methods similar to those used to test medical masks, which everybody agrees should be saved for medical workers who are exposed to high doses of virus from seeing infected patients. The best medical mask — called the N95 respirator — filters out at least 95 percent of particles as small as 0.3 microns. By comparison, a typical surgical mask — made using a rectangular piece of pleated fabric with elastic ear loops — has a filtration efficiency ranging from 60 to 80 percent.

Dr. Wang’s group tested two types of air filters. An allergy-reduction HVAC filter worked the best, capturing 89 percent of particles with one layer and 94 percent with two layers. A furnace filter captured 75 percent with two layers, but required six layers to achieve 95 percent. To find a filter similar to those tested, look for a minimum efficiency reporting value (MERV) rating of 12 or higher or a microparticle performance rating of 1900 or higher.

The problem with air filters is that they potentially could shed small fibers that would be risky to inhale. So if you want to use a filter, you need to sandwich the filter between two layers of cotton fabric. Dr. Wang said one of his grad students made his own mask by following the instructions in the C.D.C. video, but adding several layers of filter material inside a bandanna.

Dr. Wang’s group also found that when certain common fabrics were used, two layers offered far less protection than four layers. A 600 thread count pillow case captured just 22 percent of particles when doubled, but four layers captured nearly 60 percent. A thick woolen yarn scarf filtered 21 percent of particles in two layers, and 48.8 percent in four layers. A 100 percent cotton bandanna did the worst, capturing only 18.2 percent when doubled, and just 19.5 percent in four layers.

The group also tested Brew Rite and Natural Brew basket-style coffee filters, which, when stacked in three layers, showed 40 to 50 percent filtration efficiency — but they were less breathable than other options.

If you are lucky enough to know a quilter, ask them to make you a mask. Tests performed at the Wake Forest Institute for Regenerative Medicine in Winston-Salem, N.C., showed good results for homemade masks using quilting fabric. Dr. Segal, of Wake Forest Baptist Health, who led the study, noted that quilters tend to use high-quality, high-thread count cotton. The best homemade masks in his study were as good as surgical masks or slightly better, testing in the range of 70 to 79 percent filtration. Homemade masks that used flimsier fabric tested as low as 1 percent filtration, Dr. Segal said.

The best-performing designs were a mask constructed of two layers of high-quality, heavyweight “quilter’s cotton,” a two-layer mask made with thick batik fabric, and a double-layer mask with an inner layer of flannel and outer layer of cotton.

Bonnie Browning, executive show director for the American Quilter’s Society, said that quilters prefer tightly woven cottons and batik fabrics that stand up over time. Ms. Browning said most sewing machines can handle only two layers of fabric when making a pleated mask, but someone who wanted four layers of protection could wear two masks at a time.

Ms. Browning said she recently reached out to quilters on Facebook and heard from 71 people who have made a combined total of nearly 15,000 masks. “We quilters are very much in the thick of what’s going on with this,” said Ms. Browning, who lives in Paducah, Ky. “One thing most of us have is a stash of fabric.”

People who don’t sew could try a folded origami mask, created by Jiangmei Wu, assistant professor of interior design at Indiana University. Ms. Wu, who is known for her breathtaking folded artwork, said she began designing a folded mask out of a medical and building material called Tyvek, as well as vacuum bags, after her brother in Hong Kong, where mask wearing is common, suggested it. (DuPont, the maker of Tyvek, said in a statement that Tyvek is intended for medical apparel, not masks.) The folded mask pattern is free online, as is a video demonstrating the folding process. In tests at Missouri University and University of Virginia, scientists found that vacuum bags removed between 60 percent and 87 percent of particles. But some brands of vacuum bags may contain fiberglass or are harder to breathe through than other materials, and shouldn’t be used. Ms. Wu used a bag by EnviroCare Technologies, which has said it does not use fiberglass in its paper and synthetic cloth bags.

“I wanted to create an alternative for people who don’t sew,” said Ms. Wu, who said she is talking to various groups to find other materials that will be effective in a folded mask. “Given the shortage of all kinds of materials, even vacuum bags might run out.”

The scientists who conducted the tests used a standard of 0.3 microns because that is the measure used by the National Institute for Occupational Safety and Health for medical masks.

Linsey Marr, a Virginia Tech aerosol scientist and an expert in the transmission of viruses, said the certification method for respirators and HEPA filters focuses on 0.3 microns because particles around that size are the hardest to catch. While it seems counterintuitive, particles smaller than 0.1 microns are actually easier to catch because they have a lot of random motion that makes them bump into the filter fibers, she said.

“Even though coronavirus is around 0.1 microns, it floats around in a wide range of sizes, from around 0.2 to several hundred microns, because people shed the virus in respiratory fluid droplets that also contain lots of salts and proteins and other things,” said Dr. Marr. “Even if the water in the droplets fully evaporates, there’s still a lot of salt and proteins and other gunk that stays behind as solid or gel-like material. I think 0.3 microns is still useful for guidance because the minimum filtration efficiency will be somewhere around this size, and it’s what NIOSH uses.”

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MAKES MASKS WITH 3 PLIES FROM WHITE MELT-BLOWN FABRIC, AND BLUE NONWOVEN FABRIC & WHITE NONWOVEN FABRIC (SEE OFFER PICTURES)

THE 3 MASK LAYERS ARE COMPOSED OF:

NONWOVEN WHITE: T/ ONE MILLION MASKS 195 TO 200mm 25g 2800m

NONWOVEN BLUE: T/ ONE MILLION MASKS 175mm 25g 2800mm

MELT-BLOWN WHITE: T/ TWO MILLION MASKS 175 25g N95

MAIN MACHINE PARTS CONSTRUCTED WITH STAINLESS STEEL

MITSUBISHI BRAND PLCs

ULTRASONIC HEAD BRAND: HUIZHUAN

ULTRASONIC GENERATOR WATTAGE CAPACITY: 1500 TO 2000 WATTS

ULTRASONIC GENERATOR FREQUENCY: 20K

MIDDLE FABRIC LAYER IS SPUNBOND, MELTBLOWN AND SPUNBOND

ACTIVATED CARBON FABRIC NOT POSSIBLE, YET

OVERALL EQUIPMENT LAYOUT:
3. INTERMEDIATE WELDING AND SLICING
2. HEMMING, NASAL, WELDING
4. MASK CONVEYOR LINE
5. EARBAND MACHINE (1 CONVEYOR LINE)
6. EARBAND MACHINE (2 CONVEYOR LINE)
7. EAR STRAP MACHINE (1 ASSEMBLY WELDING)
8. EAR STRAP MACHINE (2 ASSEMBLY WELDING)
9. MASK LINE
10. MASK LINE

PRODUCT DETAILS:
VOLTAGE: 220V, 50/60HZ
AUTOMATIC MASK MACHINE
POWER: 85KW
PRODUCTION OUTPUT: 100 MASKS PER MINUTE, THE MAXIMUM ACTUAL OUTPUT IS 5000 PER HOUR.
DIMENSIONS: 6500mm X 4500mm X 2000mm

120 TO 150 MASKS PER MINUTE, ACTUAL DETECTION DATA
DELIVERY TIME: 20 DAYS

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REFERENCE  NUMBER:  G-0784

RIETER FDY  EXTRUSION EQUIPMENT FOR POLYPROPYLENE YEAR 1996/98

 

1. Machine m26/39:

Year 1996

For 1 fdy spinning line with 2+4 positions, each position with 4 ends

Product:  fdy-yarn on bobbins

Raw material:  pp, dried filament grade chips

Yarn count range:  150 – 400 dtex

Winder speed for target:  4000 m/min

 

Machine technical data:

Position gauge:  800 mm

Spinning pump capacity:  4x10 ccm/rev

Spinneret size diameter:  95 mm

Quench width:  670 mm

Quench length:  1700 mm

Number of spin-finish pumps per position:  1

Capacity of spin-finish pump:  4x0.05 ccm/rev

Number of winders/position:  1

Type of winder:  riemat a6-094

Number of packages/winder:  4

Maximum package diameter:  420 mm

Package stroke:  190 mm

Package weight at 280 mm package diameter:  approx. 6.2 kg

 

Detailed technical specifications:

Extruder for 4 positions Year 1998:

 

1 extruder type e1. 105-30m:

-nominal extruder capacity:  max 275 kg/h for pp

-operational extruder capacity:  max 248 kg/h for pp

-screw diameter:  105 mm

-l/d ratio:  30

-barrel with:

                electrical ceramic heaters

                7 heating zones, each zone equipped with one 2xpt100

                heating zone capacity approx. 58 kw

                inlet zone, water cooled

                nozzle for nitrogen purge

                insulation

-screw with torpedo mixing head

-reduction gear, including belt transmission to motor

-dc motor, rated power approx. 95kw

-extruder frame

 

1 extruder measuring head, dowtherm vapour heated

-measuring head comprising:

                coarse filter

                insulation

-double pt100, one each for melt and dowtherm vapour temperature

-pressure sensors for melt pressure, one in front and one behind the coarse filter

 

1 melt distribution system, dowtherm vapour heated

-melt distribution system comprising

                main product pipe between extruder, measuring head and melt distributor.

 

Extruder for 2 positions Year 1998:

1 extruder type e1. 60-30

-nominal extruder capacity:  max 275 kg/h for pp

-operational extruder capacity:  max 248 kg/h for pp

-screw diameter:  60 mm

-l/d ratio:  30

-barrel with

                electrical ceramic heaters

                6 heating zones, each zone equipped with one 2xpt100

                heating zone capacity approx. 17 kw

                inlet zone, water cooled

                insulation

-screw nitrited with maddock mixing head

-reduction gear, including belt transmission to motor

-dc motor, rated power approx. 22kw

-extruder frame

 

1 extruder measuring head, electrically heated year 1998

-measuring head comprising:

                insulation

Double pt100, one each for melt and dowtherm vapour temperature

                                pressure sensors for melt pressure

                burst disc for power switch-off at overpressure.

 

1 melt distribution system, dowtherm vapour heated

-melt distribution system comprising

                main product pipe between extruder, measuring head and melt distributor.

 

1 riebeam bottom loading spinning beam year 1998

-beam comprising:

                welded-in pump blocks with bolted pump adapter plate

                silumin insulation blocks

                melt distribution pipes with polished inner surfaces

                efficient vapour heating on all sides of spin pumps

                optimized heat condustion to the spinnerets

                1 freezing valve upstream of each spinpump

                2 pressure sensors for measuring the melt pressure in front and behind the spinpump

                (2 per line)

                heating box, completely insulated

                heating by dowtherm vapour

                1 double pt100 for measuring and controlling the heating box temperature

Designed as follows:

-bottom loading of rieter quickfit spinpacks

-design temperature 320°c

-maximum allowable working pressure: 300 bar for melt pipe and 2.57 bar for jacket

 

Dowtherm evaporator and components for heating system:

-electrically heated, total capacity approx 25 kw

-shut-off valves

-drainage valves

-dry protection sensor

-magnetic controlled level gauge

- vent system on top of measuring head.

 

Poy spin packs, type rieter quickfit:

-max pressure in the spinpack:  350 bar

-design temperature:  320 °c

-spinneret outside dimensions:  95 mm

-bottom loading design

-bayonet locking, insert and tighten by turning 90°

-self sealing system

-sand or metal powder filtration, 3 cm filling depth

-wire mesh filters

 

Spin pumps with motors and gears:

Gear pumps, 4-fold

Capacity 4 x 6 ccm/rev

Each spin pump system comprising

Individual drive motor with flange connection to the reduction gear

Hollow gear shaft for installation of spin pump shaft

Shaft with shear pin protection

Reduction ratio 1:80

Pump speed:  8-30 rev/min

Motor type:  synchronous ac-motor

Rated power:  500w at 50 cps

 

Quench air cabinets bsk 670/1700:

Each cabinet comprising:

-rigid cabinet made from welded sheet metal, painted, side walls made from alu sheet metal

-air rectifier consisting of different layers of perforated metal sheets, rectifiers removable to the front for cleaning.

-1 perforated hinged door

-air inlet duct flanged with counter flange, comprising air flow regulating flaps

-interfloor filament duct, length 2000 mm

-alu chutes for start-up

-nozzles for connection of differential pressure gauge.

 

Spinning vapour exhausts:

-exhaust hood per spinning position for removal of spinning vapour

-hood designed as follows:

                made from stainless steel

                air flow regulation flap

                hood removable for cleaning

 

Take-up frames, type riedraw 1:

Welded steel frame, housing all drawrolls, compressed air supply pipes for the aspirator units and the yarn waste pipes within the fdy take-up unit.

Per position:

                4 inlet yarn guides

                4 spin finish application nozzles

                1 yarn cutter / aspirator unit

                1 spin finish pump

                4 centring yarn guides

                4 intermingling units

                rolls as described further

                1 automatic winder riemat a6-094

 

Drawrolls year 1998:

Mono 1 with 1 rievap 32 dual shell drawroll, type j7/32-40, ot40

Speed range:  750 to 4000 mpm

Roll diameter:  190 mm

Working width:  250 mm

Temperature range:  45-250°c

And 1 bearing separator roll, type srd60 hard chromium plated

 

Duo 1 with 2 rievap 32 dual shell drawroll, type j7/32-60, ot40

Speedrange:  1000 to 6000 mpm

Roll diameter:  190 mm

Working width:  250 mm

Temperature range:  45-250°c

 

Duo 2 with 2 rievap 32 dual shell drawroll, type j7/32-60, ot40

Speedrange:  1000 to 6000 mpm

Roll diameter:  190 mm

Working width:  250 mm

Temperature range:  45-250°c

 

Duo 3 with 2 cold draw roll units each type j7/45-55

Speedrange:  1800 to 5500 mpm

Roll diameter:  150 mm

Working width:  180 mm

 

Automatic and wasteless winder riemat a6-094

Spindle driven

Number of ends per winder:  4 ends

Yarn count range:  15 to 1000 dtex

Take up speed:  2500 to 5500 m/min

Chuck length:  900 mm

 

190 mm stroke, 420 mm outside package diameter

Package volume:  24.7 dm³

Tube bore:  94 ±0.2 mm

Tube outside diameter:  106 ±0.4 mm

Tube length:  225 ±0.5 mm

 

Oil-mist lubrication unit:

Compressed air distribution station

Mobile aspirator guns with hoses

Electrical control equipment

-for electrical power

                general:  3 x 380v/50hz plus ground wire

                euro-standard:  3x400v 50 or 60hz plus ground wire

                maximum voltage variation ±10% measured at terminals of cabinets

                maximum frequency variation:  ±2%

 

Process control system (cif):

                fully integrated control system to control and monitor the entire spinning line.

                the central monitoring unit si linked to the plc of the spinning section and the plcs of each spinning position.

 

Drive and heater control year 1998:

 

Spinning section:

Speed adjustment for the extruder motor is done via a dc-convertor

To achieve a constant pressure at the extruder outlet, the output of the pressure controller is transmitted to the dc-converter to adjust the extruder speed.

The feedback of the actual extruder speed is done by a tacho generator mounted on the extruder motor.

One common frequency inverter supplies the synchronous ac motors for the spin pumps.

According to process conditions, the plc transmits the setpoint to the inverter.

All motors are equipped with an overload protection.

Solid state relays heat each extruder zone and spinning beam.

Each extruder zone and the spinning beam represent an independent control loop.

 

Take-up section:

The inverter unit is a processor-controlled static frequency inverter for powering the 3-phase motors.

All inverter units in a position cabinet are supplied with approx 570v dc from a common rectifier.

 

Heating system:

The heating unit rhu is processor-controlled.

The power supply is taken straight from 3-phase 380/400v which powers the cabinet.

The inductor is fitted inside the draw roll.

The rhu switches the current on and off in this inductor. While current flows, a voltage is inducted into the

Rotating draw roll.

This sets up a short-circuit current in the draw roll, thereby heating the roll unit.

 

2. Machines m27/ 28 / 30 year 1998:

For 3 fdy spinning lines each with 2 positions, and each position with 4 ends

Product:  fdy-yarn on bobbins

Raw material:  pp, dried filament grade chips

Yarn count range:  150 – 400 dtex

Winder speed for target:  4000 m/min

 

Machine technical data:

Position gauge:  1000 mm

Spinning pump capacity:  4x7.5 ccm/rev

Spinneret size diameter:  95 mm

Quench width:  470 mm

Quench length:  1200 mm

Number of spin-finish pumps per position:  2

Capacity of spin-finish pump:  4x0.16 ccm/rev + 4x0,05 ccm/rev

Number of winders/position:  1

Type of winder:  riemat a6-094

Number of packages/winder:  4

Maximum package diameter:  420 mm

Package stroke:  190 mm

Package weight at 280 mm package diameter:  approx. 6.2 kg

 

Detailed technical specifications:

 

1 extruder type e1. 60-30m

-nominal extruder capacity:  max 80 kg/h for pp

-screw diameter:  65 mm

-l/d ratio: 30

-barrel with:

                electrical ceramic heaters

                7 heating zones, each zone equipped with one 2xpt100

                heating zone capacity approx. 22 kw

                inlet zone, water cooled

                nozzle for nitrogen purge

                insulation

-screw with torpedo mixing head

-reduction gear, including belt transmission to motor

-dc motor, rated power approx. 22kw

-extruder frame

 

1 extruder measuring head, electrically heated:

-measuring head comprising:

                coarse filter

                insulation

-double pt100, one each for melt and dowtherm vapour temperature

-pressure sensors for melt pressure, one in front and one behind the coarse filter

 

1 melt distribution system, dowtherm vapour heated:

Melt distribution system comprising:

                main product pipe between extruder, measuring head and melt distributor.

 

1 riebeam bottom loading spinning beam:

-beam comprising:

                welded-in pump blocks with bolted pump adapter plate

                silumin insulation blocks

                melt distribution pipes with polished inner surfaces

                efficient vapour heating on all sides of spin pumps

                optimized heat condustion to the spinnerets

                1 freezing valve upstream of each spinpump

                2 pressure sensors for measuring the melt pressure in front and behind the spinpump

                (2 per line)

                heating box, completely insulated

                heating by dowtherm vapour

                1 double pt100 for measuring and controlling the heating box temperature

Designed as follows:

-bottom loading of rieter quickfit spinpacks

-design temperature 320°c

-maximum allowable working pressure: 300 bar for melt pipe and 2.57 bar for jacket

 

Dowtherm evaporator and components for heating system:

-electrically heated, total capacity approx 18 kw

-shut-off valves

-drainage valves

-dry protection sensor

-magnetic controlled

-level gauge

-vent system on top of measuring head.

 

Poy spin packs, type rieter quickfit:

Max pressure in the spinpack:  350 bar

Design temperature:  320 °c

Spinneret outside dimensions:  95 mm

Bottom loading design

Bayonet locking, insert and tighten by turning 90°

Self sealing system

Sand or metal powder filtration, 3 cm filling depth

Wire mesh filters

 

Spin pumps with motors and gears:

Gear pumps, 4-fold

Capacity 4 x 7.5 ccm/rev

Each spin pump system comprising

                individual drive motor with flange connection to the reduction gear

                hollow gear shaft for installation of spin pump shaft

                shaft with shear pin protection

                reduction ratio:  1:80

                pump speed:  8-30 rev/min

                motor type:  synchronous ac-motor

                rated power:  500w at 50 cps

 

Quench air cabinets bsk 470/1200

Each cabinet comprising:

-rigid cabinet made from welded sheet metal, painted, side walls made from alu sheet metal

-air rectifier consisting of different layers of perforated metal sheets, rectifiers removable to the front for cleaning.

-1 perforated hinged door

-air inlet duct flanged with counter flange, comprising air flow regulating flaps

-interfloor filament duct, length 2000 mm

-alu chutes for start-up

-nozzles for connection of differential pressure gauge.

 

Spinning vapour exhausts:

-exhaust hood per spinning position for removal of spinning vapour

-hood designed as follows:

                made from stainless steel

                air flow regulation flap

                hood removable for cleaning

 

Take-up frames, type riedraw 1:

Welded steel frame, housing all drawrolls, compressed air supply pipes for the aspirator units and the yarn waste pipes within the fdy take-up unit.

Per position:

                4 inlet yarn guides

                2 spin finish application nozzles per end

                1 yarn cutter / aspirator unit

                2 spin finish pump

                4 centring yarn guides

                4 pre-intermingling jets

                4 intermingling units

                1 additional operator panel between duo1 and duo 2.

                rolls as described further

                1 automatic winder riemat a6-094

 

Drawrolls:

Mono 1 with 1 rievap 32 dual shell drawroll, type j7/32-40, ot40

Speedrange:  750 to 4000 mpm

Roll diameter:  190 mm

Working width:  250 mm

Temperature range:  45-250°c

And 1 bearing separator roll, type srd60

Hard chromium plated

 

Duo 1 with 2 rievap 32 dual shell drawroll, type j7/32-60, ot40

Speedrange:  1000 to 6000 mpm

Roll diameter:  190 mm

Working width:  250 mm

Temperature range:  45-250°c

 

Duo 2 with 2 rievap 32 dual shell drawroll, type j7/32-60, ot40

Speedrange:  1000 to 6000 mpm

Roll diameter:  190 mm

Working width:  250 mm

Temperature range:  45-250°c

 

Duo 3 with 2 cold draw roll units each type j7/45-55

Speedrange:  1800 to 5500 mpm

Roll diameter:  150 mm

Working width:  180 mm

 

Automatic and wasteless winder riemat a6-094:

Spindle driven

Number of ends per winder:  4 ends

Yarn count range:  15 to 1000 dtex

Take up speed:  2500 to 5500 m/min

Chuck length:  900 mm

 

190 mm stroke, 420 mm outside package diameter

Package volume:  24.7 dm³

Tube bore:  94 ± 0.2 mm

Tube outside diameter:  106 ± 0.4 mm

Tube length:  225 ± 0.5 mm

 

Compressed air distribution station:

Mobile aspirator guns with hoses

Electrical control equipment

For electrical power

                general : 3 x 380v/50hz plus ground wire

Euro-standard: 3x400v 50 or 60hz plus ground wire

Maximum voltage variation ±10% measured at terminals of cabinets

                maximum frequency variation: ±2%

 

Process control system (cif):

Fully integrated control system to control and monitor the entire spinning line.

The central monitoring unit si linked to the plc of the spinning section and the plcs of each spinning position.

 

Drive and heater control:

Spinning section.

Speed adjustment for the extruder motor is done via a dc-convertor.

To achieve a constant pressure at the extruder outlet, the output of the pressure controller is transmitted to the dc-converter to adjust the extruder speed.

The feedback of the actual extruder speed is done by a tacho generator mounted on the extruder motor.

One common frequency inverter supplies the synchronous ac motors for the spin pumps.

According to process conditions, the plc transmits the setpoint to the inverter.

All motors are equipped with an overload protection.

Solid state relays heat each extruder zone and spinning beam.

Each extruder zone and the spinning beam represent an independent control loop.

 

Take-up section:

The inverter unit is a processor-controlled static frequency inverter for powering the 3-phase motors.

All inverter units in a position cabinet are supplied with approx 570v dc from a common rectifier.

 

Heating system:

The heating unit rhu is processor-controlled.

The power supply is taken straight from 3-phase 380/400v which powers the cabinet.

The inductor is fitted inside the draw roll.

The rhu switches the current on and off in this inductor.

While current flows, a voltage is inducted into the rotating draw roll.

This sets up a short-circuit current in the draw roll, thereby heating the roll unit.

 

HOURLY PRODUCTION:

FOR 150 DENIER @ 3500 MPM WINDER SPEED, THE HOURLY PRODUCTION IS 3.5 KG/BOBBIN.

AS THERE IS 4 ENDS PER POSITION, THIS MEANS 14 KG/HOUR/POSITION

M26/39 ARE OF 2 + 4 POSITIONS; HENCE M26 = 28 KG/HOUR AND M39 = 56 KG/HOUR

M27/28/30 ARE OF 2 POSITIONS EACH, HENCE 28 KG/HOUR EACH.

(AS PER OUR PEOPLE AT THE EXTRUSION PLANT, THEY WERE RUNNING TRIALS TO PRODUCE THE 150 DENIER @ 4000 MPM WINDER SPEED)

 

FOR 300 DENIER @ 3600 MPM WINDER SPEED, THE HOURLY PRODUCTION IS 7.2 KG/BOBBIN.

AS THERE IS 4 ENDS PER POSITION, THIS MEANS 28.8 KG/HOUR/POSITION

M26/39 ARE OF 2 + 4 POSITIONS; HENCE M26 = 57.6 KG/HOUR AND M39 = 115.2 KG/HOUR

M27/28/30 ARE OF 2 POSITIONS EACH, HENCE 57.6 KG/HOUR EACH.

 

FOR 600 DENIER @ 2200 MPM WINDER SPEED, (SPEED LIMITATION DUE TO EXTRUDER CAPACITY) THE HOURLY PRODUCTION IS 8.8 KG/BOBBIN.

AS THERE IS 4 ENDS PER POSITION, THIS MEANS 35.2 KG/HOUR/POSITION

M26/39 ARE OF 2 + 4 POSITIONS; HENCE M26 = 70.4 KG/HOUR AND M39 = 140.8 KG/HOUR

M27/28/30 ARE OF 2 POSITIONS EACH, HENCE 70.4 KG/HOUR EACH.

 

MACHINE HAS BEEN PARTIALLY DISASSEMBLED (EXTRUDERS AND SPINBEAMS HAVE BEEN TAKEN DOWN TO GROUNDFLOOR) REST OF THE EQUIPMENT STILL TO BE DISASSEMBLED

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